feat(html/svelte): parsing of new blocks (biomejs#8023)

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: ematipico

.changeset/all-tips-hang.md

@@ -0,0 +1,12 @@
+---
+"@biomejs/biome": patch
+---
+
+
+Added support Svelte syntax `{@html}`. Biome now is able to parse and format the Svelte syntax [`{@html}`](https://svelte.dev/docs/svelte/@html):
+
+```diff
+-{@html   'div'}
++{@html 'div'}
+```
+The contents of the expressions inside the `{@html <expression>}` aren't formatted yet.

.changeset/brown-poets-sit.md

@@ -0,0 +1,12 @@
+---
+"@biomejs/biome": patch
+---
+
+Added support Svelte syntax `{@render}`. Biome now is able to parse and format the Svelte syntax [`{@render}`](https://svelte.dev/docs/svelte/@render):
+
+```diff
+-{@render   sum(1, 2)   }
++{@render sum(1, 2)}
+```
+
+The contents of the expressions inside the `{@render <expression>}` aren't formatted yet.

.changeset/icy-planes-leave.md

@@ -0,0 +1,11 @@
+---
+"@biomejs/biome": patch
+---
+
+Added support Svelte syntax `{@attach}`. Biome now is able to parse and format the Svelte syntax [`{@attach}`](https://svelte.dev/docs/svelte/@attach):
+
+```diff
+-<div {@attach    myAttachment   }>...</div>
++<div {@attach myAttachment}>...</div>
+```
+The contents of the expressions inside the `{@attach <expression>}` aren't formatted yet.

.changeset/light-toys-check.md

@@ -10,3 +10,4 @@ Added support Svelte syntax `{#key}`. Biome now is able to parse and format the
 +  <div></div>
 +{/key}
 ```
+The contents of the expressions inside the `{#key <expression>}` aren't formatted yet.

.changeset/mean-carrots-peel.md

@@ -0,0 +1,12 @@
+---
+"@biomejs/biome": patch
+---
+
+Added support Svelte syntax `{@const}`. Biome now is able to parse and format the Svelte syntax [`{@const}`](https://svelte.dev/docs/svelte/@const):
+
+```diff
+-{@const   name = value}
++{@const name = value}
+```
+
+The contents of the expressions inside the `{@const <expression>}` aren't formatted yet.